Who are you..

Crimson and Oliver were going to be step siblings but Oliver was aborted before anything could happen Oliver is older than crimson and wants to tell the truth about his parents to him, but crimson doesn't believe it. Oliver is the child of mark and nat he has a a "normal" form when he looks like a normal child but don't worry mark and nat have another child whom is alive, Oliver hates the child with a burning passion kinda like crimson. Yeah only nat's children can see him crimson is most scared of him because he's the youngest out of the 4 (5 counting Oliver)